40780216 has 16 divisors (see below), whose sum is σ = 78530040. Its totient is φ = 19838880.

The previous prime is 40780183. The next prime is 40780241. The reversal of 40780216 is 61208704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68590 + ... + 69181.

Almost surely, 2^40780216 is an apocalyptic number.

It is an amenable number.

40780216 is a deficient number, since it is larger than the sum of its proper divisors (37749824).

40780216 is a wasteful number, since it uses less digits than its factorization.

40780216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137814 (or 137810 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 40780216 is about 6385.9389286150. The cubic root of 40780216 is about 344.2044710124.

The spelling of 40780216 in words is "forty million, seven hundred eighty thousand, two hundred sixteen".